Buy BMW 335i Headlight Assembly

BMW 335i Headlight Overview

The BMW 335i, part of the E90/E92/E93 3 Series lineup, features advanced headlight systems that vary by model year and trim. These headlights are designed to provide optimal illumination and enhance the vehicle's aesthetics. (Lazada)

Headlight Specifications

Headlight Types:

• Halogen Headlights: Standard on earlier models, providing adequate illumination. (XBimmers)
• Xenon (HID) Headlights: Available on higher trims, offering brighter and more energy-efficient lighting. (ECSTuning)
• Adaptive Headlights: Found on certain models, these headlights adjust direction based on steering angle and vehicle speed. (eBay)

Bulb Sizes:

• Low Beam: H7 or D1S/D1R, depending on the headlight type. (SEALIGHT)
• High Beam: H7 or D1S/D1R. (AUXITO)
• Fog Lights: H11 or 9006/HB4. (SEALIGHT)
• Daytime Running Lights (DRL): 1156/1157.
• Turn Signal Lights: 1156/1157.

For a comprehensive bulb size guide, refer to the SEALIGHT LED chart. (SEALIGHT)

Headlight Assembly Details

Headlight assemblies for the BMW 335i are available in various configurations:

• Halogen Assemblies: Standard on base models, featuring traditional halogen bulbs.
• Xenon Assemblies: Include D1S/D1R bulbs for enhanced brightness and efficiency. (SEALIGHT)
• Adaptive Assemblies: Equipped with motors that adjust the beam direction based on driving conditions. (ECSTuning)

These assemblies are designed for specific model years and trims, ensuring proper fit and functionality.

Wiring and Electrical Information

The headlight wiring harness in the BMW 335i varies between halogen and xenon systems. For detailed wiring diagrams, refer to the E90/E92/E93 wiring resources. (Zpost, YouTube)

Headlight Adjustment(E90Post)

Proper headlight alignment is crucial for optimal visibility and to avoid blinding other drivers. Adjustment procedures may vary based on headlight type: (Bimmerfest)

• Manual Adjustment: Some models feature screws on the top or side of the headlight assembly for vertical and horizontal adjustments.
• Automatic Adjustment: Adaptive headlights automatically adjust based on vehicle load and steering angle.

For a visual guide on adjusting headlight aim, refer to the instructional video. (YouTube)

Headlight Replacement

Replacing headlight bulbs or assemblies in the BMW 335i requires careful attention to detail:

• Bulb Replacement: Ensure compatibility with your headlight type (halogen, xenon, or adaptive).
• Assembly Replacement: Follow manufacturer guidelines for removal and installation to avoid damage.

For a step-by-step guide on headlight assembly removal, refer to the tutorial video. (YouTube)

Frequently Asked Questions

Q: What are the common bulb sizes for the BMW 335i headlight?

A: Common bulb sizes include H7 for low and high beams, D1S/D1R for xenon systems, and H11 or 9006/HB4 for fog lights. (SEALIGHT)

Q: How do I adjust the headlight alignment on my BMW 335i? (Bimmerfest)

A: Locate the adjustment screws on the headlight assembly and turn them to adjust the beam's vertical and horizontal alignment.

Q: Can I replace the headlight assembly myself? (Buy Auto Parts)

A: Yes, with proper tools and instructions, you can replace the headlight assembly. Ensure you follow the correct procedure to avoid damage.

Q: What should I do if my adaptive headlights aren't functioning correctly? (eBay)

A: Check the wiring connections and fuses related to the adaptive headlight system. If issues persist, consult a professional technician.

Q: Are there any common issues with BMW 335i headlights?

A: Common issues include bulb burnout, alignment problems, and adaptive headlight malfunctions. Regular maintenance can help prevent these issues.

Additional Resources

• BMW 335i Headlight Bulb Size Guide
• BMW 335i Headlight Assembly Parts
• BMW 335i Headlight Wiring Diagram
• How to Adjust Headlight Level BMW! | E90 E92 328i 335i M3
• BMW 335i Headlight Assembly Removal

This comprehensive guide provides essential information for BMW 335i owners regarding headlight specifications, maintenance, and troubleshooting. Regular upkeep ensures optimal performance and safety on the road.